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From: "Dmitry Kravkov" <dmitry@broadcom.com>
To: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH net v2 6/6] bnx2x: prevent crash in shutdown flow with CNIC
Date: Thu, 18 Jul 2013 00:45:12 +0300	[thread overview]
Message-ID: <1374097512-19540-7-git-send-email-dmitry@broadcom.com> (raw)
In-Reply-To: <1374097512-19540-1-git-send-email-dmitry@broadcom.com>

From: Yuval Mintz <yuvalmin@broadcom.com>

There might be a crash as during shutdown flow CNIC might try
to access resources already freed by bnx2x.
Change bnx2x_close() into dev_close() in __bnx2x_remove (shutdown flow)
to guarantee CNIC is notified of the device's change of status.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 9394b7d..2fdc8e6 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12838,8 +12838,7 @@ static void __bnx2x_remove(struct pci_dev *pdev,
 		unregister_netdev(dev);
 	} else {
 		rtnl_lock();
-		if (netif_running(dev))
-			bnx2x_close(dev);
+		dev_close(dev);
 		rtnl_unlock();
 	}
 
-- 
1.8.1.4

      parent reply	other threads:[~2013-07-17 21:45 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-17 21:45 [PATCH net v2 0/6] bnx2x: fixes Dmitry Kravkov
2013-07-17 21:45 ` [PATCH net v2 1/6] bnx2x: properly initialize statistic counters Dmitry Kravkov
2013-07-17 21:45 ` [PATCH net v2 2/6] bnx2x: prevent statistics update flow to act before statistics are started Dmitry Kravkov
2013-07-17 21:45 ` [PATCH net v2 3/6] bnx2x: update fairness parameters following DCB negotiation Dmitry Kravkov
2013-07-17 21:45 ` [PATCH net v2 4/6] bnx2x: fix memory leak in VF Dmitry Kravkov
2013-07-17 21:45 ` [PATCH net v2 5/6] bnx2x: fix PTE write access error Dmitry Kravkov
2013-07-17 21:51   ` Sergei Shtylyov
2013-07-17 21:45 ` Dmitry Kravkov [this message]

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